CalcCalcCalc is an app that allows you to train your mental arithmetic and able to compete in a competition with other participants.

The training part allows the calculation of varying degrees of problems in addition, subtraction, multiplication and division. The difficulties to be set corresponding to the different requirements of the held daily competition. In the competition, all participants have to solve the same 10 tasks. The aim of the competition is free of errors to solve the tasks in the shortest time. The easiest tasks of Monday to resolve. Tuesdays, Wednesdays and Thursdays is expected to moderate difficulty and on Friday he reached the highest level. On the weekend tasks of all levels are provided. The cycle repeats every week. In the analysis of competition in addition to the results of the land of the submitted site and data are provided for the used mobile phone.

To evaluate the results various statistical values are displayed graphically.

With the various difficulties, primary school children can train to adults and compete against each other.